Do you have________ books on Chinese food?—Yes, I have______.

When you have borrowed a book from the library, you should keep it well, as if it were ______ of ______.

“______ can you stay here in the summer holidays?” “For two weeks.” 　　 [ ]

Loulan is believed __________ over by sandstorms gradually from AD

Listen! The teachers ________ a discussion in the meeting room at the moment.